Electronic door lock

Abstract

The application discloses an electronic door lock, which comprises a shell assembly, a protection piece, an alarm module, a sensing module and a control module, the shell assembly is provided with a charging hole and a key hole, the protection piece is movably arranged on the shell assembly, and the protection piece is used for opening and closing the charging hole and the key hole; the alarm module is arranged on the shell assembly; the sensing module is arranged on the shell assembly and can generate a sensing signal when the protection piece opens the charging hole or the key hole; and the control module is arranged on the shell assembly and electrically connected with the alarm module and the sensing module respectively, so that the control module can control the alarm module to work according to the sensing signal, the alarm module can work when the protection piece opens the charging hole and the key hole, an alarm signal is sent to prompt a user, the user can determine that the charging hole or the key hole is opened according to the alarm signal, and the use safety of the electronic door lock is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door lock, in particular to an electronic door lock. BACKGROUND

[0002] The existing electronic door lock is generally provided with a mechanical lock and a charging hole. The mechanical lock can be used as a backup unlocking mode. When the electronic element of the electronic door lock fails, the user can open the lock through the mechanical lock. Meanwhile, when the battery of the electronic door lock is out of power, the charging hole can facilitate the user to charge the battery. As known, the thief can directly open the mechanical lock with a universal key or unlock the electronic door lock by high-voltage electric shock on the electronic element to enter the room to steal, however, the user cannot know in time that the electronic door lock is unlocked abnormally, and the safety of the electronic door lock is low. SUMMARY

[0003] The present application aims at at least solving one of the problems in the prior art. To this end, the present application provides an electronic door lock, which can improve the use safety of the electronic door lock.

[0004] The electronic door lock according to the embodiments of the present application comprises a shell assembly, a protection piece, an alarm module, a sensing module and a control module. The shell assembly is provided with a charging hole and / or a key hole. The protection piece is movably arranged in the shell assembly and is used to open and close the charging hole and / or the key hole. The alarm module is arranged in the shell assembly. The sensing module is arranged in the shell assembly and can generate a sensing signal when the protection piece opens the charging hole or the key hole. The control module is arranged in the shell assembly and is electrically connected with the alarm module and the sensing module respectively. The control module can control the alarm module to work according to the sensing signal.

[0005] The electronic door lock according to the embodiments of the present application has at least the following beneficial effects:

[0006] When the protection piece closes the charging hole and the key hole, the electronic door lock is in a normal working state, the sensing module does not generate a sensing signal, and the alarm module stops working. When the protection piece opens the charging hole or the key hole, the electronic door lock is in an abnormal working state, the sensing module can generate a sensing signal which is transmitted to the control module, the control module can control the alarm module to work according to the sensing signal, and the alarm module sends an alarm signal to prompt the user. The user can determine that the charging hole or the key hole is opened according to the alarm signal, so as to improve the use safety of the electronic door lock.

[0007] According to some embodiments of the present application, the shell assembly is provided with a mounting groove, and the protection piece is provided with a connecting part which is accommodated in the mounting groove and can move along the length direction of the mounting groove.

[0008] According to some embodiments of the present application, a guide structure is arranged between the shell assembly and the shield.

[0009] According to some embodiments of the present application, the guide structure comprises a guide portion arranged on the shield and a guide slot arranged on the shell assembly, the guide portion is accommodated in the guide slot and is movable along the length direction of the guide slot.

[0010] According to some embodiments of the present application, a first limiting structure is arranged between the shield and the shell assembly.

[0011] According to some embodiments of the present application, the first limiting structure comprises a limiting member arranged on the shell assembly and a limiting slot arranged on the shield, when the shield closes the charging hole and / or the keyhole, one end of the limiting member is inserted into the limiting slot.

[0012] According to some embodiments of the present application, the shell assembly is provided with a mounting seat, the mounting seat is provided with a mounting hole, the limiting member is arranged through the mounting hole and is movable along the axial direction of the mounting hole, a reset member is arranged between the mounting seat and the limiting member.

[0013] According to some embodiments of the present application, a second limiting structure is arranged between the mounting seat and the limiting member, the second limiting structure is used to limit the movement of the limiting member along the axial direction of the mounting hole.

[0014] According to some embodiments of the present application, the shield is provided with a positioning slot, the positioning slot is communicated with the limiting slot, when the shield opens the keyhole or the charging hole, one end of the limiting member is accommodated in the positioning slot.

[0015] According to some embodiments of the present application, the shield is connected with a pulling member, the shell assembly is provided with a waist-shaped hole, the pulling member is arranged through the waist-shaped hole and is movable along the length direction of the waist-shaped hole.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 Structure schematic diagram for opening charging hole and keyhole of electronic door lock of embodiments of the present application;

[0019] Figure 2 For Figure 1An enlarged view of a portion of A;

[0020] Figure 3 A structural schematic view of the electronic door lock of the embodiment of the present application closing the charging hole and the keyhole;

[0021] Figure 4 A structural schematic view of the electronic door lock of the embodiment of the present application closing the charging hole and the keyhole; Figure 3 An enlarged view of a portion of B;

[0022] Figure 5 An exploded schematic view of the electronic door lock of the embodiment of the present application;

[0023] Figure 6 An internal structural schematic view of the electronic door lock of the embodiment of the present application;

[0024] Figure 7 A structural schematic view of the protection member of the embodiment of the present application;

[0025] Figure 8 A structural schematic view of the shell of the embodiment of the present application;

[0026] Figure 9 A structural schematic view of the second limiting structure of the embodiment of the present application.

[0027] Reference signs:

[0028] The shell assembly 100, the charging hole 101, the keyhole 102, the mounting groove 103, the guide groove 104, the waist-shaped hole 105, the shell 110, the accommodating cavity 111, the opening 112, the base 120;

[0029] The protection member 200, the connecting portion 210, the avoiding gap 211, the first shielding portion 212, the second shielding portion 213, the guide portion 220, the limiting groove 230, the positioning groove 240;

[0030] The induction module 300;

[0031] The limiting member 400, the limiting portion 410;

[0032] The mounting seat 500, the mounting hole 510, the limiting protrusion 520;

[0033] The reset member 600;

[0034] The pulling member 700, the connecting strip 710;

[0035] The mechanical lock 800. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended only for the purpose of explaining the present application, and should not be understood as limiting the present application.

[0037] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as limiting the present application, which does not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0038] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0039] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0040] Referring to Figures 1 to 4 , the electronic door lock according to the embodiment of the present application comprises a shell assembly 100, a protective piece 200, an alarm module (not shown in the figure), an induction module 300 and a control module (not shown in the figure), the shell assembly 100 is provided with a charging hole 101 and a keyhole 102, the protective piece 200 is movably arranged in the shell assembly 100, the protective piece 200 is used for opening and closing the charging hole 101 and the keyhole 102, the alarm module is arranged in the shell assembly 100, the induction module 300 is arranged in the shell assembly 100 and can generate an induction signal when the protective piece 200 opens the charging hole 101 or the keyhole 102, the control module is arranged in the shell assembly 100, the control module is electrically connected with the alarm module and the induction module 300 respectively, and the control module can control the alarm module to work according to the induction signal, so that the alarm module can work when the protective piece 200 opens the charging hole 101 and the keyhole 102, and send an alarm signal to prompt the user, the user can determine that the charging hole 101 or the keyhole 102 is opened according to the alarm signal, so as to improve the use safety of the electronic door lock.

[0041] Specifically, when the shield 200 closes the charging hole 101 and the keyhole 102, the electronic door lock is in a normal working state, the sensing module 300 does not generate a sensing signal, and the alarm module stops working. When the shield 200 opens the charging hole 101 or the keyhole 102, the electronic door lock is in an abnormal working state, the sensing module 300 can generate a sensing signal and transmit the sensing signal to the control module. The control module can control the alarm module to work according to the sensing signal, and the alarm module sends an alarm signal to prompt the user. The user can determine that the charging hole 101 or the keyhole 102 is opened according to the alarm signal, so as to improve the use safety of the electronic door lock.

[0042] It can be understood that the sensing signal can be configured as a low level or a high level, and the control module can receive and process the sensing signal, which is not described in detail here.

[0043] It should be noted that the sensing module 300 can be a travel switch. When the shield 200 opens the charging hole 101 or the keyhole 102, the travel switch can be abutted and triggered to generate a sensing signal, so that the alarm module sends an alarm signal.

[0044] Of course, in some specific embodiments, the sensing module 300 can also be a structure of an infrared light receiver cooperating with an infrared light emitter. When the shield 200 opens the charging hole 101 or the keyhole 102, the shield 200 can block the light emitted by the infrared light emitter, so that the infrared light receiver can generate a sensing signal, so that the alarm module sends an alarm signal, which is not limited here.

[0045] It should be noted that the control module can be a programmable logic controller or a micro processing unit, which can receive and process the sensing signal, which is not limited here.

[0046] Of course, in some specific embodiments, only the keyhole 102 can be configured on the shell assembly 100 of the electronic door lock. A nickel-hydrogen battery or a button cell can be provided on the shell assembly 100 to power the electronic door lock. When the nickel-hydrogen battery or the button cell is out of power, a new nickel-hydrogen battery or button cell can be replaced, and there is no need to provide the charging hole 101 to power the nickel-hydrogen battery or the button cell. The shield 200 can only close and open the keyhole 102. When the shield 200 opens the keyhole 102, the sensing module 300 can be triggered to generate a sensing signal, and the control module can control the alarm module to work.

[0047] In addition, only the charging hole 101 can be provided on the shell assembly 100 of the electronic door lock, and there is no need to provide the keyhole 102. When the shield 200 opens the charging hole 101, the sensing module 300 can be triggered to generate a sensing signal, and the control module can control the alarm module to work.

[0048] Moreover, when the shell assembly 100 of the electronic door lock is configured with the charging hole 101 and the keyhole 102, the charging hole 101 and the keyhole 102 can be respectively arranged on two different side walls of the shell assembly 100, and the guard 200 and the induction module 300 are correspondingly configured with two, one of the two guards 200 is used to open the keyhole 102, and the other is used to open the charging hole 101, when the charging hole 101 or the keyhole 102 is opened, the guard 200 can trigger the corresponding induction module 300 to generate an induction signal, so that the control module controls the alarm module to work.

[0049] In some embodiments of the present application, the guard 200 can be arranged in the shell assembly 100 or outside the shell assembly 100, which can facilitate the opening and closing of the keyhole 102 and the charging hole 101, and will not be described in detail here.

[0050] Referring to Figure 1 , Figure 3 In some embodiments of the present application, the alarm module can be configured as a loudspeaker structure, when the control module controls the alarm module to work, the loudspeaker can emit an alarm sound to prompt the user that the charging hole 101 or the keyhole 102 of the shell assembly 100 is being opened, which is not limited here.

[0051] It can be understood that when the guard 200 opens the charging hole 101 or the keyhole 102, the alarm module can immediately alarm or delay alarm, and the delay time can be 10 seconds, 20 seconds, 30 seconds, 40 seconds, 50 seconds, 60 seconds, etc., which is not limited here.

[0052] Of course, in some specific embodiments, the alarm module can also be connected to the user's mobile phone through a wireless module, and the wireless connection module is connected with the control module, so that the alarm module can realize remote alarm to prompt the user that the charging hole 101 or the keyhole 102 of the shell assembly 100 is being opened.

[0053] It should be noted that the wireless module can be a Bluetooth connection module or a WIFI connection module, which is not limited here.

[0054] Referring to Figures 5 to 7 In some embodiments of the present application, the shell assembly 100 is provided with a mounting groove 103, and the guard 200 is provided with a connecting part 210, the connecting part 210 is accommodated in the mounting groove 103 and can move along the length direction of the mounting groove, which facilitates the opening and closing of the keyhole 102 and the charging hole 101 by the guard 200.

[0055] Specifically, the mounting groove 103 is a long strip structure, the connecting part 210 is accommodated in the mounting groove 103 and can reciprocate along the length direction of the mounting groove 103, which facilitates the opening and closing of the keyhole 102 and the charging hole 101 by the guard 200.

[0056] It should be noted that the protective piece 200 can also be arranged on the shell assembly 100 in a flipped manner, one end of the protective piece 200 is hinged to the shell assembly 100, and a clamping structure is arranged between the opposite end of the protective piece 200 and the shell assembly 100. The protective piece 200 is detachably connected to the shell assembly 100 through the clamping structure, and the keyhole 102 and the charging hole 101 can be conveniently opened and closed.

[0057] Specifically, the clamping structure can include a clamping head arranged on the protective piece 200 and a self-locking switch arranged on the shell assembly 100. The user can disconnect the clamping structure by pressing the protective piece 200 to open the keyhole 102 and / or the charging hole 101, which is simple and convenient to operate.

[0058] Of course, in some specific embodiments, the clamping structure can also be configured as a structure in which a clamping head and a clamping groove are matched, the clamping head is arranged on the protective piece 200, the clamping groove is arranged on the shell assembly 100, and the clamping head is accommodated in the clamping groove. This can also facilitate the opening of the keyhole 102 and / or the charging hole 101, which is simple and convenient to operate.

[0059] It should be noted that the protective piece 200 can also be arranged on the shell assembly 100 in a rotated manner, the connecting portion 210 of the protective piece 200 is rotationally connected to the shell assembly 100, and the user can open and close the keyhole 102 and the charging hole 101 by reciprocally rotating the protective piece 200, which will not be described in detail here.

[0060] It should be noted that the protective piece 200 can also be arranged on the shell assembly 100 in a folded manner, which can facilitate the opening and closing of the charging hole 101 or the keyhole 102, which will not be described in detail here.

[0061] Referring to Figure 7 In some embodiments of the present application, the connecting portion 210 is provided with an avoiding gap 211, which can separate the connecting portion 210 into a first shielding portion 212 and a second shielding portion 213. When the protective piece 200 closes the charging hole 101 and the keyhole 102, the first shielding portion 212 shields the charging hole 101, and the second shielding portion 213 shields the keyhole 102. When the protective piece 200 opens the charging hole 101 and the keyhole 102, the avoiding gap 211 faces the charging hole 101, and the first shielding portion 212 is located between the charging hole 101 and the keyhole 102, without shielding the keyhole 102, which can facilitate the opening and closing of the charging hole 101 and the keyhole 102.

[0062] Referring to Figure 5 , Figure 7In some embodiments of the present application, a guide structure is arranged between the shell assembly 100 and the protective piece 200, which can guide the protective piece 200 to move in a preset direction, thereby improving the use reliability of the protective piece 200.

[0063] With reference to Figure 5 , Figure 7 In some embodiments of the present application, the guide structure includes a guide portion 220 arranged on the protective piece 200 and a guide groove 104 arranged on the shell assembly 100. The guide portion 220 is accommodated in the guide groove 104 and can move along the length direction of the guide groove 104, which can guide the protective piece 200 to move in a preset direction, thereby improving the use reliability of the protective piece 200.

[0064] Specifically, the guide portion 220 is accommodated in the guide groove 104 and connected with the side wall of the guide groove 104, which can guide the protective piece 200 to move in a preset direction, thereby improving the use reliability of the protective piece 200.

[0065] It should be noted that the guide structure can also be a structure in which a waist-shaped hole 105 arranged on the protective piece 200 cooperates with a guide pin arranged on the shell assembly 100. The guide pin is arranged in the waist-shaped hole 105 and can move along the length direction of the waist-shaped hole 105. The guide pin is connected with the side wall of the waist-shaped hole 105, which can also guide the protective piece 200 to move in a preset direction, thereby improving the use reliability of the protective piece 200. In addition, the positions of the waist-shaped hole 105 and the guide pin can also be interchanged, i.e., the waist-shaped hole 105 is arranged on the shell assembly 100 and the guide pin is arranged on the protective piece 200, which is not limited herein.

[0066] It can be understood that the connecting portion 210 is arranged on one side of the protective piece 200, and the guide portion 220 is arranged on the opposite side of the protective piece 200, which can facilitate the assembly of the protective piece 200.

[0067] With reference to Figure 5 , Figure 7 In some embodiments of the present application, a first limiting structure is arranged between the protective piece 200 and the shell assembly 100, which can limit the protective piece 200 to move along the length direction of the guide groove 104, thereby preventing the protective piece 200 from being opened under the action of non-human external force to charge the charging hole 101 and / or the key hole 102, and improving the use reliability of the electronic door lock.

[0068] With reference to Figure 5 , Figure 7In some embodiments of the present application, the first limiting structure comprises a limiting piece 400 arranged on the shell assembly 100 and a limiting groove 230 arranged on the protective piece 200. When the protective piece 200 closes the charging hole 101 and / or the keyhole 102, one end of the limiting piece 400 is inserted into the limiting groove 230, which can limit the movement of the protective piece 200 along the length direction of the guide groove 104, prevent the protective piece 200 from being opened under the action of non-human external force, and improve the use reliability of the electronic door lock.

[0069] Specifically, when the protective piece 200 closes the charging hole 101 and / or the keyhole 102, the limiting piece 400 is accommodated in the limiting groove 230 and abuts against the sidewall of the limiting groove 230, which can limit the movement of the protective piece 200 along the length direction of the guide groove 104, prevent the protective piece 200 from being opened under the action of non-human external force, improve the use reliability of the electronic door lock, when the protective piece 200 opens the charging hole 101 and / or the keyhole 102, the limiting piece 400 is separated from the limiting groove 230, so that the protective piece 200 can move freely relative to the shell assembly 100, and the charging hole 101 and / or the keyhole 102 can be conveniently opened.

[0070] It should be noted that the positions of the limiting piece 400 and the limiting groove 230 can also be interchanged, i.e., the limiting piece 400 is arranged on the protective piece 200, and the limiting groove 230 is arranged on the shell assembly 100, which is not described in detail here.

[0071] Of course, in some specific embodiments, the first limiting structure can also be a structure in which the limiting piece 400 cooperates with a limiting spring. The limiting piece 400 is arranged on the protective piece 200, one end of the limiting spring abuts against the limiting piece 400, and the other end abuts against the shell assembly 100. The limiting spring can push the protective piece 200 to automatically close the charging hole 101 and / or the keyhole 102, which is not described in detail here.

[0072] It can be immediately seen that one end of the limiting piece 400 abutting against the protective piece 200 is in a spherical cap structure, and the limiting groove 230 is in a spherical structure corresponding to the limiting piece 400, which is not described in detail here.

[0073] Reference Figure 5 , Figure 9 In some embodiments of the present application, the shell assembly 100 is provided with a mounting seat 500, the mounting seat 500 is provided with a mounting hole 510, the limiting piece 400 is arranged in the mounting hole 510 and can move along the axial direction of the mounting hole 510, and a reset piece 600 is arranged between the mounting seat 500 and the limiting piece 400, which can reset the limiting piece 400 to improve the use reliability of the electronic door lock.

[0074] Specifically, the reset member 600 has elasticity, is accommodated in the mounting hole 510, one end of the reset member 600 abuts against the limiting member 400, and the other end abuts against the bottom wall of the mounting hole 510. When the protective member 200 opens the charging hole 101 and / or the keyhole 102, the side wall of the limiting groove 230 can extrude the limiting member 400 to move away from the protective member 200, so that the protective member 200 can be easily disconnected from the limiting member 400, thereby facilitating the opening of the charging hole 101 and / or the keyhole 102.

[0075] Meanwhile, by configuring the limiting member 400 to be movable along the axial direction of the mounting hole 510, the interference between the limiting member 400 and the protective member 200 can be reduced, so that when the charging hole 101 and / or the keyhole 102 is opened, the force of the protective member 200 acting on the limiting member 400 can be reduced, thereby improving the service life of the limiting member 400 and the use reliability of the electronic door lock.

[0076] In addition, when the protective member 200 closes the charging hole 101 and / or the keyhole 102, the reset member 600 can push the limiting member 400 to move towards the protective member 200 by the elastic potential energy stored therein, so that one end of the limiting member 400 can be accommodated in the limiting groove 230, and the limiting member 400 can be automatically reset.

[0077] It should be noted that the reset member 600 is a structure capable of axial elastic deformation, such as a compression spring or a rubber member, which can automatically reset the limiting member 400, and will not be described in detail here.

[0078] Referring to Figure 5 , Figure 7 In some embodiments of the present application, the protective member 200 is provided with a positioning groove 240 in communication with the limiting groove 230. When the protective member 200 opens the keyhole 102 or the charging hole 101, one end of the limiting member 400 is accommodated in the positioning groove 240, and the limiting member 400 can be positioned.

[0079] Specifically, the positioning groove 240 has an elongated structure. When the protective member 200 opens the keyhole 102 or the charging hole 101, one end of the limiting member 400 is accommodated in the positioning groove 240 and connected with the side wall of the positioning groove 240. When the limiting member 400 moves along the length direction of the positioning groove 240, the positioning groove 240 can position the limiting member 400 to avoid misalignment of the limiting member 400 with the limiting groove 230, so that when the protective member 200 closes the keyhole 102 or the charging hole 101, one end of the limiting member 400 can be accurately accommodated in the limiting groove 230, thereby improving the use reliability of the electronic door lock.

[0080] Referring to Figure 1 , Figure 3In some embodiments of the present invention, the protective member 200 is connected to a pull member 700, the housing assembly 100 is provided with a waist-shaped hole 105, the pull member 700 passes through the waist-shaped hole 105 and can move along the length direction of the waist-shaped hole 105, so that the user can pull the pull member 700 to move, so as to open and close the charging hole 101 and / or the key hole 102.

[0081] Specifically, the protective component 200 is provided with a connection hole, one end of the pull member 700 is inserted into the connection hole and is interference-fitted with the connection hole, and the other end of the pull member 700 extends out of the housing assembly 100, so that the user can easily pull the pull member 700 to move, so as to open and close the charging port 101 and / or the key hole 102.

[0082] It should be noted that one end of the pull member 700 is provided with multiple connecting strips 710. The multiple connecting strips 710 are arranged at intervals along the circumference of the pull member 700. The pull member 700 is interference-fitted with the connecting hole through multiple connectors, which can facilitate the insertion of the pull member 700 into the connecting hole and facilitate the assembly of the pull member 700 and the protective member 200.

[0083] It is understandable that the pull member 700 can also be connected to the protective member 200 by means of a threaded connection. One end of the pull member 700 is provided with a first threaded part, and the side wall of the connecting hole is provided with a second threaded part. The first threaded part and the second threaded part are threadedly connected, which can also facilitate the assembly of the pull member 700 and the protective member 200.

[0084] Of course, in some specific embodiments, the pulling component 700 and the protective component 200 can also be an integral structure. The pulling component 700 and the protective component 200 are integrally formed by injection molding, which can reduce the number of molds, thereby reducing the manufacturing cost of the molds, and thus reducing the production cost of the pulling component 700 and the protective component 200, and thus reducing the production cost of the electronic door lock.

[0085] Reference Figure 5 , Figure 9 In some embodiments of the present invention, a second limiting structure is provided between the mounting base 500 and the limiting member 400. The second limiting structure is used to restrict the axial movement of the limiting member 400 along the mounting hole 510, which can prevent the limiting member 400 from separating from the mounting hole 510, thereby improving the reliability of the door lock.

[0086] Specifically, the second limiting structure includes a limiting portion 410 provided on the limiting member 400 and a limiting protrusion 520 provided on the side wall of the mounting hole 510, the limiting portion 410 is arranged along the circumference of the limiting member 400, and the limiting protrusion 520 is arranged along the circumference of the mounting hole 510, when the limiting member 400 extends out of the mounting hole 510 to a certain length, the limiting portion 410 can abut against the limiting protrusion 520 to limit the movement of the limiting member 400 along the axial direction of the mounting hole 510, and the separation of the limiting member 400 from the mounting hole 510 can be prevented, thereby improving the use reliability of the door lock.

[0087] It can be understood that the second limiting structure can also be a structure in which a waist-shaped groove is matched with a limiting pin, the limiting pin is arranged on the side wall of the mounting hole 510, and the waist-shaped groove is arranged on the limiting member 400, the limiting pin is accommodated in the waist-shaped groove and can abut against the side wall of the waist-shaped groove to limit the limiting member 400, which will not be described in detail here.

[0088] Reference Figure 5 , Figure 8 In some embodiments of the present application, the shell assembly 100 includes a shell 110 and a base 120 connected to the shell 110, the shell 110 is provided with a containing cavity 111 having an opening 112, the base 120 is sealed to the opening 112, the shell 110 and the base 120 form a containing space, the key hole 102 and the charging hole 101 are both in communication with the containing space, the induction module 300, the control module and the alarm module are all arranged in the containing space, the charging interface and the mechanical lock 800 are also arranged in the containing space, the charging hole 101 is arranged corresponding to the charging interface, and the key hole 102 is arranged corresponding to the key hole of the mechanical lock 800.

[0089] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0090] The above embodiments have been described in detail in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the true scope of the present application.

Claims

1. An electronic door lock, characterized by The utility model relates to a kind of security alarm device, including: Shell assembly (100) is equipped with charging hole (101) and keyhole (102); Protective piece (200) is movably arranged in the shell assembly (100), and the protective piece (200) is used to open and close the charging hole (101) and the keyhole (102); Alarm module is arranged in the shell assembly (100); Induction module (300) is arranged in the shell assembly (100), and the induction module (300) can generate induction signal when the protective piece (200) opens the charging hole (101) and the keyhole (102); Control module is arranged in the shell assembly (100), and the control module is electrically connected with the alarm module and the induction module (300) respectively, and the control module can control the alarm module to work according to the induction signal; The shell assembly (100) is equipped with mounting groove (103), the protective piece (200) is equipped with connecting portion (210), the connecting portion (210) is housed in the mounting groove (103), and can be moved along the length direction of the mounting groove (103), the connecting portion (210) is equipped with avoiding gap (211), the avoiding gap (211) can separate the connecting portion (210) into first shielding portion (212) and second shielding portion (213), when the protective piece (200) closes the charging hole (101) and the keyhole (102), the first shielding portion (212) shields the charging hole (101), and the second shielding portion (213) shields the keyhole (102), when the protective piece (200) opens the charging hole (101) and the keyhole (102), the avoiding gap (211) is towards the charging hole (101), and the first shielding portion (212) is located between the charging hole (101) and the keyhole (102), and does not shield the keyhole (102).

2. The electronic door lock according to claim 1, wherein The shell assembly (100) and the protective piece (200) are equipped with guide structure.

3. The electronic door lock according to claim 2, wherein The guide structure includes guide portion (220) arranged in the protective piece (200) and guide groove (104) arranged in the shell assembly (100), and the guide portion (220) is housed in the guide groove (104) and can be moved along the length direction of the guide groove (104).

4. The electronic door lock of claim 1, wherein The protective piece (200) and the shell assembly (100) are equipped with first limiting structure.

5. The electronic door lock according to claim 4, wherein The first limiting structure includes limiting piece (400) arranged in the shell assembly (100) and limiting groove (230) arranged in the protective piece (200), and one end of the limiting piece (400) is inserted into the limiting groove (230) when the protective piece (200) closes the charging hole (101) and the keyhole (102).

6. The electronic door lock according to claim 5, wherein The shell assembly (100) is provided with a mounting seat (500) provided with a mounting hole (510), the limiting piece (400) is arranged in the mounting hole (510) and can move along the axial direction of the mounting hole (510), and the mounting seat (500) and the limiting piece (400) are provided with a reset piece (600).

7. The electronic door lock according to claim 6, wherein The mounting seat (500) and the limiting piece (400) are provided with a second limiting structure for limiting the axial movement of the limiting piece (400) along the mounting hole (510).

8. The electronic door lock of claim 5, wherein, The protective piece (200) is provided with a positioning groove (240) in communication with the limiting groove (230), and one end of the limiting piece (400) is accommodated in the positioning groove (240) when the protective piece (200) opens the key hole (102) or the charging hole (101).

9. The electronic door lock according to claim 8, wherein The protective piece (200) is connected with a pulling piece (700), the shell assembly (100) is provided with a waist-shaped hole (105), the pulling piece (700) is arranged in the waist-shaped hole (105) and can move along the length direction of the waist-shaped hole (105).

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